'\"
'\" Generated from file 'nns_server\&.man' by tcllib/doctools with format 'nroff'
'\" Copyright (c) 2007-2008 Andreas Kupries <andreas_kupries@users\&.sourceforge\&.net>
'\"
.TH "nameserv::server" n 0\&.3\&.2 tcllib "Name service facility"
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.SH NAME
nameserv::server \- Name service facility, Server
.SH SYNOPSIS
package require \fBTcl  8\&.4\fR
.sp
package require \fBnameserv::server  ?0\&.3\&.2?\fR
.sp
package require \fBcomm \fR
.sp
package require \fBinterp \fR
.sp
package require \fBlogger \fR
.sp
\fB::nameserv::server::start\fR
.sp
\fB::nameserv::server::stop\fR
.sp
\fB::nameserv::server::active?\fR
.sp
\fB::nameserv::server::cget\fR \fB-option\fR
.sp
\fB::nameserv::server::configure\fR
.sp
\fB::nameserv::server::configure\fR \fB-option\fR
.sp
\fB::nameserv::server::configure\fR \fB-option\fR \fIvalue\fR\&.\&.\&.
.sp
.BE
.SH DESCRIPTION
Please read \fIName service facility, introduction\fR first\&.
.PP
This package provides an implementation of the serviver side of the
name service facility queried by the client provided by the package
\fBnameserv\fR\&. All information required by the server will be
held in memory\&. There is no persistent state\&.
.PP
This service is built in top of and for the package \fBcomm\fR\&.
It has nothing to do with the Internet's Domain Name System\&. If the
reader is looking for a package dealing with that please see Tcllib's
packages \fBdns\fR and \fBresolv\fR\&.
.PP
This server supports the \fICore\fR protocol feature, and since
version 0\&.3 the \fISearch/Continuous\fR feature as well\&.
.SH API
The package exports five commands, as specified below:
.TP
\fB::nameserv::server::start\fR
This command starts the server and causes it to listen on the
configured port\&. From now on clients are able to connect and make
requests\&. The result of the command is the empty string\&.
.sp
Note that any incoming requests will only be handled if the
application the server is part of does enter an event loop after this
command has been run\&.
.TP
\fB::nameserv::server::stop\fR
Invoking this command stops the server and releases all information it
had\&. Existing connections are shut down, and no new connections will
be accepted any longer\&. The result of the command is the empty string\&.
.TP
\fB::nameserv::server::active?\fR
This command returns a boolean value indicating the state of the
server\&. The result will be \fBtrue\fR if the server is active,
i\&.e\&. has been started, and \fBfalse\fR otherwise\&.
.TP
\fB::nameserv::server::cget\fR \fB-option\fR
This command returns the currently configured value for the specified
\fB-option\fR\&. The list of supported options and their meaning can
be found in section \fBOPTIONS\fR\&.
.TP
\fB::nameserv::server::configure\fR
In this form the command returns a dictionary of all supported
options, and their current values\&. The list of supported options and
their meaning can be found in section \fBOPTIONS\fR\&.
.TP
\fB::nameserv::server::configure\fR \fB-option\fR
In this form the command is an alias for
"\fB::nameserv::server::cget\fR \fB-option\fR"\&.
The list of supported options and their meaning can be found in
section \fBOPTIONS\fR\&.
.TP
\fB::nameserv::server::configure\fR \fB-option\fR \fIvalue\fR\&.\&.\&.
In this form the command is used to configure one or more of the
supported options\&. At least one option has to be specified, and each
option is followed by its new value\&.
The list of supported options and their meaning can be found in
section \fBOPTIONS\fR\&.
.sp
This form can be used only if the server is not active, i\&.e\&. has not
been started yet, or has been stopped\&. While the server is active it
cannot be reconfigured\&.
.PP
.SH OPTIONS
The options supported by the server are for the specification of the
TCP port to listen on, and whether to accept non-local connections or
not\&.
They are:
.TP
\fB-localonly\fR \fIbool\fR
This option specifies whether to accept only local connections
(-localonly 1) or remote connections as well (-localonly 0)\&. The
default is to accept only local connections\&.
.TP
\fB-port\fR \fInumber\fR
This option specifies the port the name service will listen on after
it has been started\&. It has to be a positive integer number (> 0) not
greater than 65536 (unsigned short)\&. The initial default is the number
returned by the command \fB::nameserv::server::common::port\fR, as
provided by the package \fB::nameserv::server::common\fR\&.
.PP
.SH HISTORY
.TP
0\&.3
Extended the server with the ability to perform asynchronous and
continuous searches\&.
.TP
0\&.2
Changed name of -local switch to -localonly\&.
.TP
0\&.1
Initial implementation of the server\&.
.PP
.SH "BUGS, IDEAS, FEEDBACK"
This document, and the package it describes, will undoubtedly contain
bugs and other problems\&.
Please report such in the category \fInameserv\fR of the
\fITcllib Trackers\fR [http://core\&.tcl\&.tk/tcllib/reportlist]\&.
Please also report any ideas for enhancements you may have for either
package and/or documentation\&.
.PP
When proposing code changes, please provide \fIunified diffs\fR,
i\&.e the output of \fBdiff -u\fR\&.
.PP
Note further that \fIattachments\fR are strongly preferred over
inlined patches\&. Attachments can be made by going to the \fBEdit\fR
form of the ticket immediately after its creation, and then using the
left-most button in the secondary navigation bar\&.
.SH "SEE ALSO"
nameserv::client(n), nameserv::common(n)
.SH KEYWORDS
name service, server
.SH CATEGORY
Networking
.SH COPYRIGHT
.nf
Copyright (c) 2007-2008 Andreas Kupries <andreas_kupries@users\&.sourceforge\&.net>

.fi
